Other Comprehensive Income (Schedule of AOCI) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated Other Comprehensive Income (loss) December 28, 2013, net of tax			$ (29,423)
Other comprehensive gain before reclassifications			13,612
Amounts reclassified from accumulated other comprehensive income (loss)			(388)
Net current-period other comprehensive income	(6,000)	954	13,224	2,856
Accumulated Other Comprehensive Income (loss) June 28, 2014, net of tax	(16,199)		(16,199)
Foreign Currency Translation [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated Other Comprehensive Income (loss) December 28, 2013, net of tax			(14,502)
Other comprehensive gain before reclassifications			13,684
Amounts reclassified from accumulated other comprehensive income (loss)			0
Net current-period other comprehensive income			13,684
Accumulated Other Comprehensive Income (loss) June 28, 2014, net of tax	(818)		(818)
Derivative Instruments [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated Other Comprehensive Income (loss) December 28, 2013, net of tax			1,448
Other comprehensive gain before reclassifications			(72)
Amounts reclassified from accumulated other comprehensive income (loss)			(1,029)
Net current-period other comprehensive income			(1,101)
Accumulated Other Comprehensive Income (loss) June 28, 2014, net of tax	347		347
Defined Benefit Pension Plans [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated Other Comprehensive Income (loss) December 28, 2013, net of tax			(16,369)
Other comprehensive gain before reclassifications			0
Amounts reclassified from accumulated other comprehensive income (loss)			641
Net current-period other comprehensive income			641
Accumulated Other Comprehensive Income (loss) June 28, 2014, net of tax	$ (15,728)		$ (15,728)